// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.debug.core;
import org.chromium.debug.core.model.ResourceManager;
import org.chromium.debug.core.model.VmResource;
import org.chromium.debug.core.model.VmResourceId;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.sourcelookup.ISourceContainer;
import org.eclipse.debug.core.sourcelookup.ISourceContainerType;
import org.eclipse.debug.core.sourcelookup.ISourceContainerTypeDelegate;
import org.eclipse.debug.core.sourcelookup.ISourceLookupDirector;
/**
* A source container implementation that wraps V8 virtual project. Currently virtual project
* has a flat file structure, so the container is accordingly one-level.
* <p>
* Unlike other implementation of {@link ISourceContainer} this class initially gets instantiated
* with no data. In this state it serves as an empty container because actual VM scripts are
* not available yet. Launch configuration UI will use it in this state more as a symbolic
* place-holder in sources tab. Later when VM is connected, method
* {@link #init(ISourceLookupDirector)} will be called and the actual content will be set.
*/
public class VProjectSourceContainer implements ISourceContainer {
private static final String TYPE_ID =
"org.chromium.debug.core.VProjectSourceContainer.type"; //$NON-NLS-1$
private ChromiumSourceDirector chromiumSourceDirector = null;
VProjectSourceContainer() {
}
public void init(ISourceLookupDirector director) {
if (director instanceof ChromiumSourceDirector) {
chromiumSourceDirector = (ChromiumSourceDirector) director;
}
}
public void dispose() {
}
public Object[] findSourceElements(String name) {
if (chromiumSourceDirector == null) {
return new Object[0];
}
ResourceManager resourceManager = chromiumSourceDirector.getResourceManager();
LookupResult lookupResult = new LookupResult(resourceManager);
return new Object[] { lookupResult };
}
public String getName() {
IProject project = null;
if (chromiumSourceDirector != null) {
project = chromiumSourceDirector.getProject();
}
if (project == null) {
return Messages.VProjectSourceContainer_DEFAULT_TYPE_NAME;
} else {
return project.getName();
}
}
public ISourceContainer[] getSourceContainers() {
return null;
}
public ISourceContainerType getType() {
return DebugPlugin.getDefault().getLaunchManager().getSourceContainerType(TYPE_ID);
}
public boolean isComposite() {
return false;
}
public VmResourceId findScriptId(IFile resource) {
if (chromiumSourceDirector == null) {
throw new IllegalStateException();
}
return chromiumSourceDirector.getResourceManager().getResourceId(resource);
}
public Object getAdapter(Class adapter) {
return null;
}
/**
* A type delegate that implements a trivial memento. We do not save any actual data here,
* because it all should be derived from a current VM launch.
*/
public static class TypeDelegate implements ISourceContainerTypeDelegate {
public ISourceContainer createSourceContainer(String memento) throws CoreException {
return new VProjectSourceContainer();
}
public String getMemento(ISourceContainer container) throws CoreException {
return "VProjectSourceContainer.memento.stub"; //$NON-NLS-1$
}
}
/**
* Result that {@link VProjectSourceContainer#findSourceElements(String)} returns instead of
* IFile that other containers normally return. This result is could be converted to file
* later in {@link ChromiumSourceDirector} where scriptId is available.
* <p>If source director failed to process result, the back-up strategy could be to do
* something in our implementation of ISourcePresentation.
*
*/
public static class LookupResult {
private final ResourceManager resourceManager;
LookupResult(ResourceManager resourceManager) {
this.resourceManager = resourceManager;
}
public VmResource getVmResource(VmResourceId resourceId) {
return resourceManager.getVmResource(resourceId);
}
}
}